DEMONSTRATION OF NDA TECHNOLOGY FOR TIMELY REPROCESSING INPUT ANALYTICAL MEASUREMENTS
A versatile nondestructive solution assay system for high performance uranium and plutonium analytical measurements in a reprocessing plant has been developed at KfK and successfully demonstrated in a hot cell environment at the European Institute for Transuranium Elements, Karlsruhe. From its principal design the so called Hybrid Instrument, which incorporates the proven X-ray techniques of K-edge densitometry and fluorescence analysis of K series X-rays, is able to measure both elements above 0.1 g/l in the liquors from all major process streams (input, in-process, product). This paper reports recent work directed towards its application to the reprocessing input analysis. It is demonstrated for the first time that this important accountability measurement can be achieved in a straightforward and simplified manner through a direct nondestructive assay. Performance data for the uranium and plutonium analysis, derived from measurements on typical dissolver solutions of reprocessed LWR fuels, favorably compare with those of the conventional, but much more elaborate Isotope Dilution Mass Spectrometry technique. The demonstrated quality and reliability of the NDA results recommend the Hybrid System as a promising analytical tool for economic and timely process control, nuclear materials accountancy and safeguards verification measurements in reprocessing.
Bibliographic Reference: INMM ANNUAL MEETING, LOUISIANA, NEW ORLEANS (USA), JUNE 22-25, 1986 WRITE TO CEC LUXEMBOURG, DG XIII/A2, POB 1907 MENTIONING PAPER E 32697 ORA
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Record Number: 1989125075400 / Last updated on: 1987-12-01
Available languages: en